Find the product of: (i) (3x + 2y)( 3x – 2y).
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Step-by-step explanation:
Ans:- 3x + 2y * 3x - 2y * 9x2 + 4y2
= (3x + 2y) (3x - 2y) (9x2 + 4y2)
= (3x)2 - (2y)2 (9x2 + 4y2)
= (9x2 - 4y2) (9x2 + 4y2)
= (9x)2 - (4y)2
= 81x2 - 16y2
I hope I help U
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